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Strata CT Standard Telephone User Guide November 2001
21
Features Direct Inward System Access (DISA)
Direct Inward System Access (DISA)
Outside callers with telephones that send Dual-tone Multi-frequency (DTMF) tones (push-button
dialling) can call in on Exchange lines programmed for DISA and dial stations or outgoing Exchange
lines without going through an attendant or operator.
➤
To make a Direct Inward Station call with DISA
1. From outside the system, call
the DISA Exchange line
phone number:___-______.
See the System
Administrator for this
number.
2. Listen for the repetitive
ringback tone signal,
followed by dial tone.
Try again if you hear busy
tone.
3. During the 10 secs. of dial
tone, make your call.
If a number is not dialled, the system automatically causes
the DISA Exchange line to ring at telephones as a normal
incoming call. Then, if the call is not answered within 15
seconds after the ringing starts it disconnects.
To call another station after completing a DISA station
call, the internal party must transfer you. Station Paging
and System Paging cannot be made on DISA calls.
4. If you hear busy tone, press
*
.
If the call is not answered after 6 rings or 24 seconds,
whichever occurs first, you hear busy tone.
5. When you hear dial tone, call
again.